Determine the mass of a sample of water containing 3.55*1022 molecules of H2O

Q: 6 Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog:…

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Q: For which of the following values of equilibrium constant does the reaction go farthest to form the…

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Q: Part I: Line Bond Structures Instructions: After looking at the examples on page 2 and 3, complete…

A: In the bond-line structure of a molecule, we show all the bonds and lone pairs on each atom.  Your…

Q: In a lab, 0.80 L of water is added to 50.0 mL of 17.4 M stock solution of humic acid (C9H9NO6). What…

A: To calculate the concentration of resulting solution after dilution with water, we would use…

Q: Why is phthalic acid soluble in water and what type of IMFs are involved in the solubility of it in…

A: Pthalic acid is soluble in water due to the hydrogen bonding of carboxylic acid with H2O molecules.

Q: What is the ratio of base [A] to acid [HA] at pH 4, 5, 6 and 7 for an acid with a pK₂ of 6?

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: Determine the initial volume. 12.0 L of 0.45 m solution from 2.9 m solution.

A: Given,  Final volume, V2 = 12.0 L  Final concentration, S2 = 0.45 m  Initial concentration, S1 = 2.9…

Q: Draw the correct product for the given Diels-Alder reaction. + Select Draw III Rings C H O More

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Q: 2 Consider the following peptides: (a) Lys-Leu-Met-Phe-Gln (b) lle-Gly-Thr-Asn-Val (c)…

A: We need to find which one of the peptides would have the greatest solubility at pH 1 and pH 14.  The…

Q: Water is the solvent of life, yet it only dissociates to a small extent. What is the pKa of water?…

A: Since, water behave as a weak electrolyte, in the pure state, water is dissociated to a very small…

Q: Question 6: Consider a hypothetical 1-D arrangement of Na+ and Cl- as depicted in the diagram below…

A: According to coulombs law., Coulombic energy between two charges is given by  E = K (Q1Q2/R) where,…

Q: The length of a pencil is measured with two rulers. Report the length of the pencil from each ruler…

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Q: The rate constant for this first-order reaction is 0.710 s¹ at 400 °C. A →→ products How long, in…

A: 1) Given, A -----> product Reaction follows First order kinetics. Rate constant (k) = 0.710 s-1…

Q: what intermediate is formed in the reaction below?

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Q: C. Formation of a solid 1. Potassium iodate and silver nitrate i a. Balance the reaction: 1 KIOS…

A: Here we are required to state the observation when potassium iodate and silver nitrate react.

Q: A group of students are doing an analysis of copper in 1-peso coin. They were tasked to prepare…

A: It is quite impossible to carry out a chemical analysis that is  free of errors or any other…

Q: Carbon monoxide is a common pollutant in urban environments.On one particular day, the air contains…

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Q: 1 2 لها Questions How many grams of NaCl are needed to prepare 200 mL of a 5% NaCl solution? A50μL…

A: dilution factor = volume of stock transferred final volume mole = massmolar mass molar mass of NaCl…

Q: The fuel used in many disposable lighter is liquid butane, C4H10. How many carbons atoms (C) are in…

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Q: The longest wavelength of light that causes electrons to be ejected from the surface of a copper…

A: Given - Threshold wavelength of metal = 243 nm             Wavelength of incident photon = 200 nm

Q: Determine the molarity of hydroxide ions in a 2.21 L solution containing 56.9 g Fe(OH), The molar…

A: Given data is as follows- the volume of the given solution is = 2.21 L the mass of Fe(OH)3 present…

Q: A 7.927 gram sample of an organic compound containing only C, H, and O is analyzed by combustion…

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Q: The measured pH of a 0.400 M HBr solution at 25 °C is 0.505. Calculate the activity coefficient for…

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Q: Order to following particles from the smallest (1) to the largest (4) nucleus quark proton atom…

A: We have to arrange nucleus, quark. Proton and atom in the increasing order of their size. Note:…

Q: What will be the final temperature of an iron and water mix , after a 44.1 g bar of iron initially…

A: Let the final Temperature be T  The amount of Heat gained by water is given by Q1 = m1S1(T - T1)…

Q: Given the reaction: (CH3)3CCI + OH* (CH3)3COH + CI", it has experimentally found that doubling the…

A: For a reaction by changing the concentration of reactant and observed change in reaction rate can be…

Q: 1. Flame Test Metal Barium chloride Calcium chloride Copper (II) sulfate Potassium chloride Sodium…

A: 1) The flame test is a qualitative test used to determine the identity of a metal or metal ion in an…

Q: Liquid X is known to have a higher viscosity and higher vapor pressure than Liquid Y. Use these…

A: A question based on properties of liquid that is to be accomplished.

Q: that is 1% ionized? (This problem is worth 4 points) 2.02 x 10-4 2.02 x 10-5 1.01 x 10-4 1.10 x 10-5…

A: Given -> Molarity of CuOH = 1M -> It is ionized 1% .

Q: Let's consider an isolated system of two oppositely- charged particles. How does the magnitude…

A: Answer: Isolated system of two oppositely charged particle means only these two charges are present…

Q: Determine the molecular formula and structure for the following: an 8-carbon hydrocarbon with three…

A: Hydrocarbons are the compounds that contain carbon and hydrogen atoms.We have given an 8-carbon…

Q: How many moles are there in 17.2 g of FeF 3 : Answer to 2 decimal places and include the unit .

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Q: In the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor.…

A: given, mass of water = 468 g mass of hydrogen = 52.4  g  we need to calculate mass of oxygen that…

Q: 3. The data below were collected for the following reaction: CH3CI(g) + 3Cl₂(g) → CCl4(g) + 3HCI(g)…

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Q: The electron shell arrangement 2,8,8,18,16 is most likely to belong to: O a. a. Krypton O b.…

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the…

Q: Calculate the amount of heat needed to melt 182. g of solid octane (C₂H₁) and bring it to a…

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Q: Ten cubic feet of air at 70°F and 1.00 atm is heated to 610°F and compressed to 2.50 atm. What…

A: Ideal gas law  equation is the equation which obeys gas law under all conditions of temperature and…

Q: Part IV. Preparation of 100 mL 25% Solution X Materials: Solution X, measuring cylinder, distilled…

A: 100 ml of 25% solution of x is need to prepare Volume of solution x= 25% of 100 ml = 25 ml  So…

Q: The rearrangement of cyclopropane to propene at 500 °C (CH2)3 CH3 CH=CH2 is first order in (CH₂)3…

A: The general form of rate law for the reaction,A+B→C+DRate, r=k[A]x[B]y where,k=rate constantx+y=n;…

Q: Give the precision of each of the followings: 50 mL buret 100 mL graduated cylinder 10 mL Mohr…

A: Since you have asked multiple questions and not specified which one to solve, we will solve first…

Q: Calculate the enthalpy change for the reaction. P4O6(a) +202(g) → P4010(*) given the following…

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Q: 63. Apply Graph mass versus volume for the data given in the table. What is the slope of the line?…

A: Given,Volume cm3 : 7.5 , 12 , 15 , 22Mass g : 24.1 , 38.5 , 48.0 , 70.1Required,…

Q: 5 Today chlorine is prepared from sodium chloride by electrochemical decomposition. Formerly…

A: 4 mole of HCl react with 1 mole of MnO2 Molecular weight of HCl is 36.48. Molecular weight of MnO2…

Q: 9. Good Question. Arrange the following species in order of increasing electron density or oxygen…

A: Given following compounds  O2 , CaO , OF2 , CO2  We have to arrange them in order of increasing…

Q: Nitrogen forms a surprising number of compounds with oxygen. A number of these, often given the…

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Q: E17C.1(b) The equilibrium constant for the binding of a drug molecule to a protein was measured as…

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Q: 1. Consider the Following rate law: Rate= K[A] [B]" How are the exponents in and m determined ? 3. A…

A: For a first order reaction the integrated rate law is written as ln[A]o[A]=kt where, [A]o=initial…

Q: 1) Complete the reaction 2) Label as acid, base, conj. Acid and conj. Base 3) Determine the…

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Q: When 367. mg of a certain molecular compound X are dissolved in 55.0 g of cyclohexane (C6H12), the…

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Q: IE₁ 999 Consider the following set of successive ionization energies (in kJ/ IE3 IE4 IES 3361 4564…

A: From the data given, first six ionization energy gap is small but energy difference between seventh…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.